TY - GEN AU - In't Veld,P H TI - The use of reference materials in quality assurance programmes in food microbiology laboratories SN - 0168-1605 PY - 1999///0225 KW - Food Microbiology KW - standards KW - Laboratories KW - Quality Control N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/s0168-1605(98)00145-7 ER -